Academic Assistants
Curriculum Vitae:
Berufliche Erfahrung
02/2021 - 10/2021 Compleo Charging Solutions AG
Werkstudent im Bereich Controlling
05/2019 - 12/2020 innogy SE
Werkstudent im Bereich Personal
01/2018 - 01/2019 argentum Unternehmensberatung GmbH
Junior Consultant
07/2017 - 08/2017 Steuerkanzlei Fuchs, Heinzen & Partner
Praktikant
04/2017 - 09/2017 Heinrich-Heine-Universität Düsseldorf
Lehrstuhl für Betriebswirtschaftslehre, insb. Betriebswirtschaftliche Steuerlehre
Tutor
Ausbildung
04/2018 - 12/2021 Universität Duisburg-Essen
Märkte und Unternehmen
Master of Science
10/2014 - 03/2018 Heinrich-Heine-Universität, Düsseldorf
Volkswirtschaftslehre
Bachelor of Science
Publications:
- Sage, F.: The Economics of Incentive Alignment: Determinants of Performance in Competitive Environments (1). 2026. CitationDetails
- Sage, F.; Prinz, J.: Is Blood Thicker than Water? The Impact of Player Agencies on Player Salaries: Empirical Evidence from Five European Football Leagues.. In: Journal of Economics and Statistics (Jahrbücher für Nationalökonomie und Statistik) (2024). doi:10.1515/jbnst-2023-0098CitationDetails
- Zumkley, M.; Sage, F.; de Dios Panal, S.; Prinz, J.: Does diversity matter? Explaining the effects of team diversity on team performance using data from a student’s business simulation game.. In: Team Performance Management: An International Journal (2024). doi:10.1108/tpm-01-2023-0005CitationDetails
- Weimar, D.; Gerpott, F.; Prinz, J.; Sage, F.: O Captain, My Captain? Exploring the Dynamics of Leadership Changes. In: Journal of Sport Management (forthcoming) . CitationAbstractDetails
The change of an individual serving as team leader is a frequent and disruptive event in organizations. Such changes might influence the behavior of both the newly appointed leader and the team. In soccer, there is a common expectation that a captain as a formal-transformational leader positively affects sporting performance. Despite this wide belief there is limited empirical evidence. We investigate the effects of exogeneous changes of a captain on the individual and the team’s effort and performance as well as outside observers’ evaluations. To test our hypotheses, we utilized individual soccer player data (N = 766) from 2,448 Bundesliga games during eight seasons (N = 48,263 player-game observations). We found that neither the newly appointed team captain nor the team itself showed higher objective effort or performance after the succession event. Nevertheless, experts rated the newly appointed team leader as demonstrating superior performance, indicating a potential leadership attribution bias.
Talks:
- Sage, F.; Bardowieck, C.; Prinz, J.: The Hidden Hand: Exploring Intermediary Dynamics in Superstar Labor Markets, 31st Annual SMAANZ Conference, 04.12.2025, Auckland, New Zealand. Details
- Sage, F.; Bardowieck, C.; Prinz, J.: Opaque and Controversial: Shedding Light on the Shadowy World of Football Agents, 100th Annual Conference of the Western Economic Association International, 22.06.2025, San Francisco, CA, USA. Details
- Froch, J.; Gürtler, O.; Sage, F.: Contingent Employment and Effort: Lessons from Soccer, Active Territories: Sport and Leisure (TA:SL) Conference, 13.05.2025, Pau, France. Details
- Weimar, D.; Gerpott, F. H.; Prinz, J.; Sage, F.: O Captain, My Captain? Empirical Evidence on the Importance of Captaincy in Soccer, 15th European Sport Economics Association (ESEA) Conference, 22.08.2024, Rotterdam, Netherlands. Details
- Sage, F.; Prinz, J.: Should he stay or should he go? Head Coach turnover and cultural disparities in the market for managers, 33rd European Conference on Operational Research, 02.07.2024, Copenhagen, Denmark. Details
- Sage, F.; Prinz, J.: Should he stay or should he go? Head Coach turnover and cultural disparities in the market for managers, 10th Football and Finance Conference, 13.05.2024, Duisburg, Germany. Details
- Weimar, D.; Gerpott, F. H.; Prinz, J.; Sage, F.: O Captain, My Captain? Empirical Evidence on the Importance of Captaincy in Soccer, Personnel, Innovation, and Education Economists Network Meeting, 07.10.2023, Bielefeld, Germany. Details
- Sage, F.; Prinz, J.: Is Blood Thicker than Water? The Impact of Player Agencies on Player Salaries: Empirical Evidence from Five European Football Leagues, 26th Jahrestagung des AK Sportökonomie, 23.06.2023, Innsbruck, Austria. Details
- Sage, F.; Prinz, J.: Is Blood Thicker than Water? The Impact of Player Agencies on Player Salaries: Empirical Evidence from Five European Football Leagues, 6th International Conference of Sport Economics & Sport Management, 26.05.2023, Budapest, Hungary. Details
- Sage, F.; Prinz, J.: Is Blood Thicker than Water? The Impact of Player Agencies on Player Salaries: Empirical Evidence from Five European Football Leagues, 9th Football and Finance Conference,, 21.04.2023, Paderborn, Germany. Details
- Sage, F.; Prinz, J.: Is Blood Thicker than Water? The Impact of Player Agencies on Player Salaries: Empirical Evidence from Five European Football Leagues, Southern Economic Association 92th Annual Meeting, 21.11.2022, Fort Lauderdale, FL, USA. Details
- Sage, F.; Prinz, J.: Is Blood Thicker than Water? The Impact of Player Agencies on Player Salaries: Empirical Evidence from Five European Football Leagues, 13th Nachwuchsworkshop Arbeitskreis Sportökonomie, 23.06.2022, Bonn, Germany. Details
- Prinz, J.; Sage, F.; Spiekermann, A.; Zumkley, M.; de Dios Panal, S.: Einfluss diverser Teams auf die Unternehmensperformance - Empirische Evidenz am Beispiel des Unternehmensplanspiels TOPSIM, 24th VHB-Tagung Hochschulmanagement, 04.03.2022, online. Details

